The situation when Samsung refrigerator stops freezing, always takes you by surprise and jeopardizes the safety of food. System owners No Frost often encounter the fact that the equipment continues to hum, the light inside is on, but the cold ceases to be produced in the required volume. This can happen either suddenly or increase gradually, starting with an increase in temperature in the refrigerator compartment.
Unlike drip systems, where ice accumulates on the back wall, in technologies No Frost the problem is often hidden inside the case. Why the Samsung refrigerator does not freeze? Most often, the problem is a violation of air circulation or failure of electronic control components. Understanding the principle of operation will help you diagnose the problem yourself before the technician arrives.
Do not panic if you find that the food has begun to deteriorate. In 80% of cases, the problem is solved by replacing one of the inexpensive sensors or defrosting the system. However, ignoring the symptoms can lead to more serious consequences, such as burning out the compressor. Below we will analyze in detail the algorithm of actions and possible causes of failure.
Primary diagnostics and checking the power supply
Before disassembling the unit, it is necessary to exclude trivial causes. Often users look for complex problems, forgetting to check the basic settings. Make sure that the plug fits tightly into the socket and that the voltage in the network is stable. The Samsung refrigerator does not freezeif power surges have damaged the control board, but first check the simplest things.
Pay attention to the position of the temperature regulator. Perhaps one of the household members accidentally moved the slider or button to the minimum cooling mode. In models with electronic control (Digital Inverter), the operating mode may have been lost. Try setting the standard values: -18°C for the freezer and +3°C for the main compartment.
⚠️ Attention: If, after turning on the mains, the compressor does not start at all and the light is on, this may indicate a malfunction of the start relay or the motor itself. Do not try to force start the engine without special knowledge - it is dangerous.
Modern models are equipped with a self-diagnosis system. If The Samsung refrigerator has stopped freezing, look at the display: flashing indicators or error codes (for example, 22E, 25E, 40E) will indicate a specific node. The decoding of the codes can always be found in the instructions or on the official portal of the manufacturer.
Problems with the No Frost defrosting system
The most common reason why Samsung No Frost refrigerator does not freezelies in the automatic defrosting system. An ice “coat” builds up on the evaporator, which is hidden behind a plastic panel in the freezer. When the layer of ice becomes too thick, it blocks the cold air supply channels.
As a result, the fan circulates air, but there is no cold, or ice blocks the fan blades and it stops spinning. The main culprits of this process:
- ❄️ Defrost heating element —a heating element that could burn out and stop melting the ice.
- ⏱️ Defrost timer —a mechanical or electronic unit that does not give the command to start defrosting.
- 🌡️ Defrost sensor —a thermal fuse that does not record the required temperature to turn on the heating element.
To check, you will need to completely defrost the refrigerator within 24 hours. If after this the equipment worked normally, and a week later the problem returned, it means that one of the elements of the defrost system is faulty. Samsung It is often caused by the failure of the defrost sensor, which is inexpensive and easy to change.
How to check the heating element with a multimeter?
To check the heating element, you need to get to the evaporator. Disconnect the heater contacts and test it with a multimeter in resistance measurement mode. If the device shows a break (one or zero, depending on the model), the heating element requires replacement. The resistance rate is usually from 200 to 400 Ohms.
Faults of the compressor and start relay
If the defrosting system is working properly, but Samsung refrigerator does not freeze, you should listen to the operation of the motor-compressor. This is the “heart” of the unit. Normally, it works cyclically: it turns on, gains temperature, turns off. If the motor hums for 10-15 seconds, then a click is heard and it goes silent - most likely the problem is in the start relay or the compressor itself.
The start relay is responsible for starting the engine. If it breaks down, the compressor windings receive power, but it cannot start. This causes an overload and a protective shutdown. In such cases Samsung requires replacement of the relay, which is a relatively inexpensive repair. However, if the replaced relay burns out again or the compressor hums and does not start even with a new relay, the compressor is likely to be wedged.
☑️ Compressor diagnostics
Replacing a compressor is a complex process that requires evacuation of the system and charging with freon. It is impossible to perform this procedure independently without equipment. If the diagnosis is confirmed, you will need to call a specialist with equipment.
Leak of refrigerant (freon)
When The Samsung refrigerator has stopped freezing, but the motor runs almost without stopping, and the condenser grille at the back remains cold or is only partially heated, this is a sure sign of a refrigerant leak. Freon is a working fluid that transfers heat. Without it, the cooling cycle is impossible.
A leak can occur anywhere in the circuit:
- 🔩 In places where tubes are soldered (factory defects or vibration).
- ❄️ In the foamed part of the body (evaporator corrosion).
- 🚪 In the door heating circuit (rarely, but it happens).
You cannot add freon “to check” or simply “gas up” the system. First, the technician must find the leak, fix it, and only then refill the system. If you simply add gas, it will leave again after a while, and the compressor will burn out due to wear and tear.
⚠️ Attention: Freon is odorless and colorless. If you smell a strange chemical smell, it could be an oil leak from the compressor or the smell of burnt wiring rather than the refrigerant itself. In any case, ensure the room is ventilated.
Clogged capillary tube
Another technical reason why No Frost does not freeze is clogged capillary tube. This is a thin copper pipeline in which freon sharply expands and cools. An ice plug may have formed in the system (due to moisture) or clogged with oil and metal wear products.
The symptoms are similar to a leak: the compressor runs for a long time, there is no cold, the condenser is warm only at the outlet of the motor. When there is a clog, you can often hear gurgling or gurgling noises inside the refrigerator that were not there before. This is freon trying to overcome the obstacle.
To eliminate the blockage, you need to:
- Purge the system with nitrogen under pressure.
- Replace the filter-drier (required whenever the circuit is opened).
- Evacuate and refilling.
Samsung error code table
Refrigerator electronics Samsung often tells you where to look for the problem. Models with a display display error codes, which greatly simplify diagnostics. Below is a table of the most common errors associated with the lack of cold.
| Error code | Description of the problem | Probable cause |
|---|---|---|
22E / 22C |
Refrigeration chamber sensor error | Faulty temperature sensor or open circuit |
25E / 25C |
Freezer sensor error | Sensor does not read evaporator temperature |
40E |
Communication error with inverter | Problems with control board or wiring |
21E |
Defrost sensor error | Thermal fuse or sensor is faulty |
11E |
Defrost sensor error | Problem in the heating element control circuit |
The presence of an error code does not always mean a breakdown of the heating element itself sensor Sometimes the problem lies in oxidized contacts or damage to the cable. Before replacing parts, it is worth checking the integrity of the connections.
Checking the fan and damper
In the system No Frost cold is produced in the freezer compartment, and then the fan drives it into the refrigeration compartment through special channels. If Samsung refrigerator it hums, but does not freeze in the upper compartment, check the operation of the fan.
Open the freezer door (press the door closing simulator button, if there is one, so that the fan turns on). If the blades do not spin or spin with difficulty, the reason may be:
- 🌀 Frozen fan hub with ice.
- ⚙️ Failure of the fan motor.
- 🧊 Mechanical blocking of the blades ice.
It is also worth mentioning the air duct damper. This is an adjustable damper that controls the supply of cold air. If it is stuck in the closed position, no cold will enter the refrigerator compartment, although everything in the freezer will be frozen solid. The damper drive may also fail.
When you need to call a technician
Independent repair is possible at the diagnostic stage, replacing sensors, heating elements or fans, if you have the skills to work with the tool. However, there are situations when you cannot do without a professional. Opening a sealed circuit requires a license and special tools.
Call a specialist if:
- 🛑 A freon leak is detected (soldering and vacuuming are required).
- 🛑 The compressor is faulty (replacement required motor).
- 🛑 The main control board has burned out (reflashing or complex electronic repair is required).
- 🛑 The system requires a complete recharge of refrigerant.
⚠️ Attention: Repair prices may vary depending on the region and model of the refrigerator. Before starting work, be sure to agree on the final cost with the master. Remember that original spare parts Samsung are more expensive than analogues, but last longer.
Regular maintenance, timely defrosting (even No Frost once a year will not hurt for prevention) and proper installation will extend the life of your refrigerator. Keep the condenser at the back of the unit clean - dust impairs heat transfer and causes the compressor to wear out.
Frequently asked questions (FAQ)
How long does it take to defrost a Samsung No Frost refrigerator?
To completely defrost the defrost and evaporator system, it is recommended to leave the refrigerator turned off with doors open for at least 24 hours. A shorter defrosting may not melt the ice in hard-to-reach places in the air ducts.
Why does the refrigerator freeze but does not turn off?
This may indicate a freon leak, a clogged capillary system, or a malfunction of the thermostat/temperature sensor. The unit tries to reach the set temperature, but cannot, so it operates in continuous mode.
Is it possible to use a refrigerator if it does not freeze?
For a short time - yes, if it is necessary for defrosting. But prolonged work with a malfunction (especially with a non-working fan or a leak) can lead to overheating and combustion of the compressor, which will make repairs economically unfeasible.
What does the flashing Ice Max indicator or snowflake mean?
On many models Samsung this indicates the activation of the fast freezing mode or, conversely, an error in the cooling system. If the blinking does not stop after a reboot (unplug for 15 minutes), diagnostics are required.